Finding the Third Proportional to 154,900 and 338,960

Step by Step Solution

1. Step 1: Write the proportion equation
   154,900 : 338,960 = 338,960 : x
2. Step 2: Convert to fraction form
   154,900/338,960 = 338,960/x
3. Step 3: Cross multiply
   154,900x = 338,960 × 338,960
4. Step 4: Simplify right side
   154,900x = 114,893,881,600
5. Step 5: Solve for x
   x = 114,893,881,600/154,900
6. Step 6: Final answer
   x = 741,729.38